About 350 Alabama Power line crews and support personnel left this afternoon from sites across the state to head toward the Northeast. They are expected to arrive on Long Island on Wednesday, after the storm has passed, although weather and road conditions could force changes in the schedule.

The heaviest snowfall is expected late tonight through Tuesday. As much as 4 inches per hour could fall during the height of the storm along the Interstate 95 corridor, which includes metropolitan Washington D.C., Philadelphia, New York and Boston. The storm is expected to paralyze travelers and shut down mass transit across the region.